They are 20km apart. because in one hour one car would travel 60km and the other 40km and 60-40=20
What question do you need help with? You have to include that!
Answer:
D. 25% decrease
Step-by-step explanation:
Since it's clear that they read less books to find how much it decreased we multiply 100 with 15 then divide it by 20
100 × 15 ÷ 20 = 75 this result shows a 25% decrease.